Finding the Fourth Proportional to 939,428.99, 1,296,410.39 and 509,709
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Solution
The fourth proportional to 939,428.99, 1,296,410.39 and 509,709 is: 703,397.54
Step by Step Solution
- Step 1: Write the proportion equation
939,428.99 : 1,296,410.39 = 509,709 : x - Step 2: Convert to fraction form
939,428.99/1,296,410.39 = 509,709/x - Step 3: Cross multiply
939,428.99x = 1,296,410.39 × 509,709 - Step 4: Simplify right side
939,428.99x = 660,792,040,927.97 - Step 5: Solve for x
x = 660,792,040,927.97/939,428.99 - Step 6: Final answer
x = 703,397.54
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.